Water (in litre) to drink a day equals your weight (in kg) multiplied by 0.033. So, if you are 60 kg, you should drink about two litres of water every day.

Water (in litres) to drink a day = Your Weight (in Kg) multiplied by 0.033. For example, if you are 60kg, you should drink about 2 litres of water every single day. At 90kg, you’ll around about 3 litres of water. All you need to do is multiply 0.033 to your weight in Kg.

How much water should you drink based on your weight?

1. Take your weight (in pounds) and divide that by 2.2.
2. Multiply that number depending on your age: If you’re younger than 30, multiply by 40.
3. Divide that sum by 28.3.
4. Your total is how many ounces of water you should drink each day.

1. Divide your weight in pounds by 2.2.
2. Multiply the result by the number below that applies to your age range: If you’re younger than 30, multiply by 40. If you’re 30–55 years old, multiply by 35.
3. Divide your result by 28.3. The answer is the estimated amount of water you require each day, in ounces.

A healthy adult needs around 35 ml of water each day per kilogram of body weight. At least according to the general guidelines from scientific organisations. A person weighing 50 kilograms requires 1.7 litres, 60 kilograms 2.1 litres, 70 kilograms 2.4 litres and 80 kilograms 2.8 litres.

About 15.5 cups (3.7 liters) of fluids a day for men. About 11.5 cups (2.7 liters) of fluids a day for women.

The answer is the number of litres you should be drinking per day. So, if you weigh 60 kilos for example, you should drink 2 litres of water a day, whereas if you weigh 80 kilos, you should drink 2.6 litres (2 litres and 600 ml) of water per day.